Bug 163613
| Summary: | exit, exit_group process status code not propagated | ||
|---|---|---|---|
| Product: | [Fedora] Fedora | Reporter: | John Reiser <jreiser> |
| Component: | strace | Assignee: | Roland McGrath <roland> |
| Status: | CLOSED DUPLICATE | QA Contact: | Brian Brock <bbrock> |
| Severity: | medium | Docs Contact: | |
| Priority: | medium | ||
| Version: | 4 | ||
| Target Milestone: | --- | ||
| Target Release: | --- | ||
| Hardware: | i386 | ||
| OS: | Linux | ||
| Whiteboard: | |||
| Fixed In Version: | Doc Type: | Bug Fix | |
| Doc Text: | Story Points: | --- | |
| Clone Of: | Environment: | ||
| Last Closed: | 2005-07-19 21:12:00 UTC | Type: | --- |
| Regression: | --- | Mount Type: | --- |
| Documentation: | --- | CRM: | |
| Verified Versions: | Category: | --- | |
| oVirt Team: | --- | RHEL 7.3 requirements from Atomic Host: | |
| Cloudforms Team: | --- | Target Upstream Version: | |
| Embargoed: | |||
From Bugzilla Helper: User-Agent: Mozilla/5.0 (X11; U; Linux i686; en-US; rv:1.7.8) Gecko/20050524 Fedora/1.0.4-4 Firefox/1.0.4 Description of problem: Strace always exits with process status code 0. Instead, strace should propagate the exit or exit_group status code of the process being traced. This would make strace more transparent because 'strace' could be inserted or removed without affecting a parent process which relies on the process status exit code. Here are test cases: -----exit42.S #include <asm/unistd.h> _start: .globl _start movl $42,%ebx movl $__NR_exit,%eax int $0x80 -----exit_group42.S #include <asm/unistd.h> _start: .globl _start movl $42,%ebx movl $__NR_exit_group,%eax int $0x80 ----- $ gcc -o exit42 -nostdlib -nostartfiles exit42.S $ gcc -o exit_group42 -nostdlib -nostartfiles exit_group42.S Version-Release number of selected component (if applicable): strace-4.5.11-1 How reproducible: Always Steps to Reproduce: 1. Compile and run testcases from Description. 2. 3. Actual Results: $ ./exit42 $ echo $? ## '$?' is bash syntax for exit status code of previous process 42 $ strace ./exit42 execve("./exit42", ["./exit42"], [/* 32 vars */]) = 0 _exit(42) = ? $ echo $? 0 ## different from non-strace case $ ./exit_group42 $ echo $? 42 $ strace ./exit_group42 execve("./exit_group42", ["./exit_group42"], [/* 32 vars */]) = 0 exit_group(42) = ? $ echo $? 0 ## different from non-strace case $ Expected Results: The process exit status code under strace should be the same as without strace; in these two cases: 42. Additional info: